Thill-coupling



8 d w` .n 4 Lw ,Pm E. n.0 e@ e, H D n [n d k e w 0 m J nu Y Lm @a DG a P Nm d Hmmm` 2 J.. 1w w .w VC F F AL E CHE .H JT 3. 1 Au. M 0 nu, /N\ N UNITED STATES JOHN HAVILAND, OF BOSTON, MASSACHUSETTS.

TH I LL-COUPLING.

SPECIFICATION forming part of Letters Patent No.V 289,413, dated December 4, 1883.

i Application filed September 19, 1883. (No model.)

Boston, in the county of Suffolk, of the Commonwealth of Massachusetts, have invented a new and useful Improvement in Carriagew Shaft Connections; and I do hereby declare the same to be described in the following speciiication and represented in the accompanying drawings, oi' which- Figure l is a side view, Fig. 2 a top view, Fig. 3 a bottom view, and Fig. et a longitudinal section, of a shaft-connection of my improved kind,l the nature-of my invention being defined inthe claims hereinafter presented;n

In such drawings, A denotes the axle-clip, constructed with ears a a, projecting from it, as shown. Through these ears there extends a screw-bolt, B, screwed into one of them, or a nut, C; or the said ears, instead of having such a bolt, may be connected by a pivotal pin extending from one to the other of them and properly fixed in or to them. .A metallic spring, D, goes around the bolt between the two ears and extends back therefrom in manner as represented in Fig.' 4. There is placed between the lipsb b of such spring and to project from them rearward a` yielding elastic plate, c, of leather or vulcanized indiarubber.

The j oint-piece E, to which the carriage shaft or thill is to be affixed, is provided with a jaw, d, in one piece with it, and also with another jaw, e, hinged to it, both of such jaws being recessed to span the spring and the leather or rubber plate in manner as represented. Furthermore, a headed screw, F, goes down through the jaw 0l and the plate c and screws into the movable jaw e. This screw serves to clamp the jaws on the spring, andthe rubber or leather plate, andthe spring on the pivotal bolt, and to do this from time to time as the spring and the bolt may become worn. By having the screw-head above the jaws or on the upper of them, not only can access readily' be had to it for revolving it, but

.screw in place.

the weight of the screw tends to keep the 45 Were the lower jaw hinged at its rearinstead of its front part to the other jaw,the clampingscrew would have to extend upward through such lower j aw, in which case the head of the screw would be under` neath such lower jaw, from which it will be seen that the weight of the screw would aid in loosening the screw and rendering it liable to work out of the jaw. Were the lips of the spring extended to the rear ends of the jaws without having between the said lips the yielding plate of leather or rubber, there would necessarily be an open space between the said lips, into which space dirt or frozen matter would be-liable to collect and impede the action of the spring. The yielding plate not only fills the space, and thus prevents any such collections, but is advantageous in other respects.

I claim- 1. i The described shaft joint-piece provided with the xed jaw and the hinged jaw, and also with the screw arranged with and adapted to them, as represented, in combination not only with the clip provided with ears and a screw-bolt or pivotal pin, but with the lipped metallic spring extending around such bolt or pin and between the jaws, all being substantially as set forth.

2. The shaft jointpiece provided with the fixed jaw and the hinged jaw, and also with the clamp-screw arranged with and adapted to them, as represented, in combination not only with the clip having ears and a screw-bolt or pivotal pin, but with the lipped metallicv spring and the yielding or elastic plate arranged with such jaws and pin, substantially as set forth.`

JOHN HAVILAND.

` Witnesses:

It. II. EDDY, E. B. PRATT. 

